GetReading / RntfReading
GetReading
The GetReading method is used to query the property of the OCA object. If the query was successful, the result is output in the properties stReading, stReadingMAX and stReadingMIN
 | Cyclic method call Since several PLC cycles may pass between sending and the response from the device, this method should be executed cyclically. |
Inputs
Name | Type | Description |
|---|---|---|
pLink | POINTER TO ST_Link | Pointer for establishing a connection between OCA objects and the OCA device |
bExecute | BOOL | The method is executed with a positive edge at the bExecute input. |
RntfReading
If the OCA object was prompted to notify changes (using the Subscription method), incoming notifications are read using the RNtfReading method.
| Cyclic method call Since several PLC cycles may pass between sending and the response from the device, this method should be executed cyclically. |
Inputs
Name | Type | Description |
|---|---|---|
pLink | POINTER TO ST_Link | Pointer for establishing a connection between OCA objects and the OCA device. |
bExecute | BOOL | The method is executed with a positive edge at the bExecute input. |
nSubscribtionNo | UDINT | Unique number for localizing the respective subscription. |